The Montblanc No. 320 fountain pen was produced in the 1960s, and features a medium sized, fairly long body made of precious resin. It's accented in the common gold plated trim, but really stands out from the crowd with its classy grey ink window! It features a 14k gold nib, and uses a piston filled mechanism to draw ink.
This particular pen is in excellent, near mint used condition. It has been inked, but shows no major scratches in the body. It does have some light corrosion on the clip, but otherwise looks nearly flawless. It comes without the original boxes or papers.